Standard TUBE-O-THERM® Burner package includes a combustion air blower with a non-sparking aluminum impeller. A built-in pilot and spark ignitor is included in the cast iron burner body, as well as the air and gas control valves, gas nozzle, pilot adjustable orifice and provisions for your flame scanner. Burner design permits blower to be rotated at 90° intervals around centerline for application flexibility.